<!DOCTYPE html><html lang="en"><head>    <meta charset="UTF-8">    {% block title %}    <title>父模板</title>    {% endblock %}</head><body>    <h1>这是网页的页头 状态栏</h1>    {% block fatherbody %}    <h1>父模板网页中间内容</h1>    {% endblock %}    <h1>这是网页的页脚 底部信息</h1></body></html>